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Infinity® Air Shower Pass Box

Controlling the ingress of particulate contamination into cleanrooms and other controlled environments is paramount in order to maintain the integrity of products and processes. Personnel traffic is the most important factor which must be controlled. Esco Pass Boxes and Transfer Hatches are an effective solution as they allow materials to be transferred into the controlled environment without actual personnel movement. They may also be used to protect the external environment from egress of contamination, for example, in biological safety laboratory applications.

Built-in air shower significantly reduces surface contamination on materials entering or exiting the controlled environment. Materials entering or exiting the controlled environment are “scrubbed” by high velocity ULPA filtered air jets with velocities of 25 m/s (4921 fpm). Contaminated air is then drawn through the base within the unit, filtered and recirculated.

An array of stainless steel nozzles direct high-velocity jets within the chamber.

Air shower duration is adjustable. Standard factory pre-set is 12 seconds in both directions.

Air Shower Pass Box Construction

Robust construction qualifies the air shower pass box for the most demanding controlled environment applications. The unit is fully assembled and ready to install and operate when shipped. All components are designed for maximum chemical resistance and enhanced durability for a long service life.

Electrical interlock maintains cleanroom integrity by preventing both doors from being opened at the same time.

The air shower is constructed of electrogalvanized steel sheets with an abrasion resistant oven-baked powder coated finish.

The pass box base surface is constructed of perforated stainless steel, making the work zone easy to clean.

Built-in air shower significantly reduces surface contamination on materials entering or exiting the controlled environment. Materials entering or exiting the controlled environment are “scrubbed” by high velocity ULPA filtered air jets with velocities of 25 m/s (4921 fpm). Contaminated air is then drawn through the base within the unit, filtered and recirculated.

An array of stainless steel nozzles direct high-velocity jets within the chamber.

Air shower duration is adjustable. Standard factory pre-set is 12 seconds in both directions.

Air Shower Pass Box Construction

Robust construction qualifies the air shower pass box for the most demanding controlled environment applications. The unit is fully assembled and ready to install and operate when shipped. All components are designed for maximum chemical resistance and enhanced durability for a long service life.

Electrical interlock maintains cleanroom integrity by preventing both doors from being opened at the same time.

The air shower is constructed of electrogalvanized steel sheets with an abrasion resistant oven-baked powder coated finish.

The pass box base surface is constructed of perforated stainless steel, making the work zone easy to clean.